By Asoka Seneviratne –

Asoka Seneviratne
About a week ago, myself and my visited an ABANS showroom near Battaramulla , shopping for a split air conditioner for our home. A very friendly sales associate /manager approached us and pushed us to buy a 12000 BTU for over Rs 250,000.00. We noticed his eagerness to sell the LG brand and wanted to enquire and other and cheaper brands. Perhaps the pricier LG’s were not selling.,.
Reluctantly he showed us the Chinese brand Haier units that were over Rs 50,000 cheaper at Rs, 199,000.00 for a 120000 BTU split AC. He explained to us that the Haier unit had one year full warranty and a 5 year compressor warranty. He did ask us the size of the room and based on my experience with AC’s in SL for several decades, I opted for a 12000 BTU unit meant for just one room.
A few days later we informed him that we wanted to pay the Rs 199,000.00 for the 12000 BTU Haier AC unit. He informed us that he wanted to come over and figure out the best way to install the AC unit, which he did. He came in with another young gentleman. We told him that the only way we would buy the AC was if he agreed to remove the old wall mounted AC in the room and cover the small hole thus created, we even told him we would provide the material do so.
He conferred with his companion and agreed. Told us that he would come on his day off and do so. We were happy.
Then he dropped a bombshell at us. He said the room size was too large and we should purchase a 18000 BTU AC unit instead of the 12000 BTU. He also told us that if we bought the 12000 BTU AC they would not offer any Warranty . The reason he gave me was that given the size of the room, a 12000 BTU AC would run too long causing the compressor to burn out. We accepted that theory and opted to buy the 18000 BTU unit costing over Rs 50000.00 more. He agreed to install the unit the next day itself.
By the way, the window AC that was already on the wall. That was 12000 BTU and after over 30 long years it was still running and cooling the room real fast. The only reason we wanted to replace was the high energy consumption and badly decayed panels etc.
We paid for Rs 18000 BTU AC unit right away with the credit card. He claimed the payment did not go through the first time and told us to pay again. Then we noticed a quick change in his attitude. He was busy answering other calls, not too worried about when he was going to install the AC the next day. I had to remind him that, per his promise we expect the new AC to be installed the next day.
Later we found out that he charged our credit card twice and cancelled one. Not sure why he did that.
Came next day and we heard nothing back from him. I called him around midday, and he came out with the most common excuse. He said he could not get hold of the installer. I reminded him of his promise to install the next day. He insisted that it was not his fault. I insisted that he should get his ducks in a row before making a promise. I demanded that I wanted the AC installed that day as promised.
A few hours later two guys showed up to install the AC. They were going to drill a 3-inch hole on the wall to run the copper tubing but cautioned them that there was a cold-water PVC pipe running through the wall and be careful where they would drill. Few minutes later I watched them drilling a large hole exactly where the water pipe was running through the wall. Then they tried to force a big bundle of copper tubing through the hole where the water pipe was very visible. I asked them what if the water pipe was to burst. Reluctantly they agreed to drill another hole. They drilled another hole but left the previous hole just covered with cement. I am supposed to paint it.
Then they installed the indoor and outdoor units for the split AC. They connected the copper tubing, connected the power, and turned the AC on. I asked them if they connected a vacuum pump to vacuum the air out of the copper tubing they ran. The answer was no, and not needed. Then I asked them if they installed a filter/dryer on those copper refrigerant lines. They replied no, not needed. I asked them if the air and moisture was still in the new tubing and that could cause premature failure of the compressor. They innocently smiled. And said they never vacuum, nor do they install filter dryers.
Shocking, the sales manager was very quick to insist that we upgrade to 18000 BTU to protect the compressor from failure but the installer insisted that there was no need to remove air and moisture in the system and add a filter dryer that was all helping to protect the expensive compressor. More importantly, these are universally accepted right refrigeration practice all over the world mostly to protect the refrigeration components including the compressor.
I asked them if they leak tested then flare joins of both ends of the copper lines they ran. Again, the reply was NO and not needed. Shocking. Again, leak testing specially flared copper lines and joints is standard universal refrigeration practice. Now if the freon leak was tiny and would cause less or no colling after one year, I would have to pay Abans to fix it ! For a problem they created during the install.
Is it not possible then that the compressor prematurely fail not because the AC is undersized but due to bad refrigeration practices?
Our surprises are not over yet. We asked the sales manager for the warranty card. He told us they no longer provide a card but the email receipt they sent mentions the warranty. I read the email receipt and was shocked again. It says if we want a 5-year warranty we need to sign an agreement form the 2nd year on. When asked, the manager told me that would cost another Rs.8000.00 a year and also we should ask for it. That was never ever mentioned before the sale. So if after two years, I failed to contact Abans and sign a service agreement, I would no longer get the 5-year compressor warranty! How convenient for Abans.
Remember the sales manager who promised to remove my old wall AC unit and cover the small hole? He never called us or came to us. We called him to find out when he would keep his promise. His reply was yet another shocker. He claimed he could not remember making such a promise. A shocking lie! He lied to us just so that he could make a sale for which he gets a commission, period.
So we learned a lesson again.
But the government too has a role here to protect the consumer. They can legislate to protect the consumer from such crooked deals. They need to legislate that the vendor in this case Abans need to make full disclosure in writing of all the conditions prior to getting paid. Ie. 5 years warranty is conditional on a 2 nd year agreement at cost, the vendor needs to provide 2nd year agreement at the time of the purchase, no warranty if they found the AC capacity is too small and delivery date will be within the promised date etc, so that the consumer can make an informed decision.
Above is my experience with Abans. I have taken the trouble to share my experience so that another potential buyer would benefit.
I am sure Abans is not alone in these bad practices. While not a top priority at all, AKD and his team can introduce legislation to protect consumers from large corporate vendors. No prior administration ever cared to protect consumers in the said manner.
So now my new 18000 BTU AC is running and cooling real fast despite the claim by Abans that a 12000 BTU unit was too small. But the refrigeration circuit is full of air and moisture. When my compressor eventually fails, is it possible that the failure was caused by terrible refrigeration practices but not due to an undersized AC unit, as Abans claimes.
Early this year, the refrigerator I bought from Abans several years ago stopped cooling. I called Abans service and paid something in the region of Rs 2500 or Rs 3000 for the tech to come and troubleshoot the issue. The tech came and just told us that in order to troubleshoot he needed to take the unit to the Abans shop. He never opened any panels or used any meters etc. but the only thing we got for our money was to be told the fridge must go to Abans to troubleshoot.
Buyer be aware!
old codger / December 8, 2024
It seems that Mr. Seneviratna is an old-school ac/ref engineer and is under the impression that domestic a/c units need to be vacuumed, flushed, etc. Those days are gone. The Copper piping comes dry-charged with refrigerant and only topping up is needed, if at all. There is no welding, brazing, etc as in the past. Plus the refrigerant is no longer Freon but R600 ( iso- butane). All this simplifies installation. No vacuum pumps, leak detectors, multimeter required.
That said, I agree that this installation was pretty shoddy, what with the unnecessary holes, etc. On an allied subject, I must comment on the tendency of salesmen to promote expensive “inverter” models over conventional ones, on the claim that the inverters save electricity. But the truth is that the savings come from the smaller compressor used by the R600 gas they use. One can get the same saving, at much less cost, and more reliability, by buying a conventional unit with R600 gas. These are indeed available, but aren’t pushed, because the dealers make less money.
https://www.agas.com/au/products-services/refrigerants/r600a/#:~:text=R600a%20(isobutane)%20is%20a%20hydrocarbon,dispensers%20and%20standalone%20display%20units.
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asoka1958 / December 8, 2024
Dear Old Codgar
I am afraid you are as wrong as you can be ,sir.
The refrigeration copper tubing they brought were no sealed with nitrogen at all. They were just HVAC quality flexible copper tubing. The techs cut them to size and connected each end with flared fittings.
As a Master Licensed HVAC Engineer in a very developed country here are the universally correct refrigeration practices.
Deep vacuum up to 500 microns any tubing that were installed
before releasing freon.
Add a filter dryer. This is to trap and left over air/moisture in tubing.
Avoid flared fitting as unless brazing is not an option.
Check head pressure and suction pressures to ensure correct
superheat and subcooling.
Unless the correct refrigeration practices are followed, the system is likely to prematurally fail, mostly the compressor as moisture is a total no-no in a refrigeration system and air causes the head pressure to rise stressing the compressor and consuming more power.
I wrote this article to highlight the need for technicians to follow universally accepted proper refrigeration practices so that the AC’s they install don’t fail prematurally causing huge costs to unsuspecting consumers.
Abans is likely to blame the customer for undersized units but the issue of failure is more likely the wrong refrigeration practices.
The AC was R-32 refrigerant and definitely needs vacuuming etc.
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old codger / December 9, 2024
Asoka,
If your split a/c did indeed come with empty copper tubing and was charged on the spot, I am very surprised and accept I was wrong in your case.
BTW, I used the wrong term. I should have said pre-charged, not dry-charged,
Many years ago, I myself did go through all that rigmarole of vacuum pumps, nitrogen, etc, but nowadays even in the West, most split units come pre-charged:
https://heatandcool.com/blogs/news/do-mini-splits-come-pre-charged?srsltid=AfmBOoq9pNWCIBCpYsz7WvoBDYAVUdeoySn6dCEy8wBsOjMHnAbw-lyE
“Yes, mini split air conditioner systems come pre-charged from the factory. This means that the required amount of refrigerant has already been added to the system during manufacturing. Users do not need to worry about adding refrigerant during installation as long as the components are properly installed and the refrigerant lines are fully connected.”
I find it very strange that Abans used dry piping and didn’t flush and vacuum. Even more surprising that they didn’t use a pre-charged system. Quite probably the installers (I wouldn’t call them technicians) didn’t know the difference.
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asoka1958 / December 9, 2024
Dear old Codgar
Again, the outdoor condensing unit comes filled with Freon charged.. The tech should only release it after connecting the copper tubing between indoor and outdoor units and then deep vacuuming.
The copper tubing called line set, do not come pre charged at all because if that is the case all that Freon will leak out when connecting.
All around in SL still usage of uptodate engineering practices are scares. Recently I watched a pvc pipe laying contractor on a main road project using a Pandama ( a piece of rag wrapped on a stick soaked with kerosene oil) to hear pvc fittings. Also many electricians are not even aware what a “ megger” is which is used to check the integrity of electrical wires inside a building. Those are electricity 101 in this day and age.
This does not mean SL techs are not smart. Just that our training methods have not kept up with the world.
I can go on and on…
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old codger / December 9, 2024
Asoka,
While agreeing with much of what you say about Sri Lankan techniques, there are systems which come with pre-charged tubing, both from China and the US. I have seen them myself.
https://www.alibaba.com/product-detail/detail_1601295542720.html?channel=minisite_a2706.wshop_pltab.119.i92&otherparams=https%3A%2F%2Fm.alibaba.com%2Fproduct%2F1601295542720%2FR410a-R134A-R32-R290-Manufactures-Customized.html&scenery_id=2&tracelog=a2706.wshop_pltab.119.i92&spm=a2706.wshop_pltab.119.i92&wx_navbar_transparent=true
.
https://iwae.com/resources/articles/pre-charged-line-sets.html
.
The line sets come with specialised valves to prevent leakage.
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LankaScot / December 9, 2024
Hello asoka1958,
I have an Fluke Portable Oscilloscope, a Fluke Multi-meter and a Fluke Megger. I have used the Scope a few times to fix Audio Amps and Mixers. The Multi-meter I use regularly and the Megger only 2 or 3 times to do an Earth Loop Impedance test. You have to be careful not to blow your RCDs when using a Megger. As Sri Lanka uses the TT system all the Distribution boxes I have seen have RCDs. I think we are the only House around here with Earth Rods. You are right, all the Electricians I have met are pretty smart, however their Electrical Safety Practices are somewhat lacking. Even in Qatar we used the UK 17th (now 18th) Edition Wiring Regulations, most Sri Lankan Electricians don’t know of this. Is there a Sri Lankan equivalent Document?
Best regard
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old codger / December 10, 2024
LS,
“. Is there a Sri Lankan equivalent Document?”
Many years ago, in Sri Lanka, tradesmen like electricians, plumbers, radio servicemen etc were required to have a licence, for which they had to pass a government test. But, like many other things, all that fell by the wayside.
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LankaScot / December 9, 2024
Hello OC and Asoka,
When I came to Sri Lanka I brought a York Split Unit and installed it in our old house.
From the Manual “Each unit is dehydrated, evacuated, leak tested and pressure tested at 450 psig before being pressurized with a holding charge of refrigerant R-410A for shipment and/or storage”.
The connecting pipes were pre-charged and sealed. I did the Electrical Installation myself using a suitably sized Breaker and 4mm 3 Core Cable to the Local 20 Amp Switch supplying the Indoor Unit. The Electrical Cable to the Outdoor Unit is integral with the Indoor Unit. My Nephew works for a Local AC Company and drilled the Holes and did the Heavy lifting. He checked the Charge etc. and switched on after testing all of the Pipework and Electrical Connections.
After 2 years of Fault free operation we moved this York Unit to our new house. Completed the Installation today and working perfectly fine.
Best regards
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old codger / December 9, 2024
LS,
“The connecting pipes were pre-charged and sealed. “
Yes, this has been the case over a couple of decades for small units, even in Sri Lanka. I can’t imagine how a company like Abans did what is described to Asoka. Perhaps they lost the pre-charged piping or sold it to someone else.
Incidentally, I believe that whether these things are badged as York, Carrier, LG, or whatever, they are all made in China.
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asoka1958 / December 10, 2024
Dear LS,
I’d the line set is nitrogen filled like some manufacturers do to prevent moisture getting in. It still need to be connected at both ends meaning the Nitrogen is lost. In any case one cannot have any inert or non energy had like air in a system meaning that all such pipe it must be deep vacuumed to 500 microns before releasing Freon from the outdoor condensing unit. The linear or the set of copper tubing cannot be filled with Freon at all as it is illegal in Al it’s all developed nations to release Freon 410 A even to atmosphere.
The mind and short of it is that all refrigeration system MUST be green from non condensibkes like nitrogen, air and moisture.
In the case of Aband they did not bring any sealed line set but just regular hvac flexible copper tubing.
The whole point of my article was to highlight that Abans techs did not follow the universally accepted proper refrigeration practices that subject these expensive AC system succeptible for pre mature failure . Abans bread will blame other things like customer opting to pick undersized systems.
Plus GOSL must also some point legislate demanding vendor to make full disclosure to customer in writing before taking their money. The course is to avoid last minute surprises like what happened to me. .
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old codger / December 10, 2024
Dear Asoka,
I agree that Abans did a bad installation. But pre-charged pipe sets are NOT illegal in the US.
Read this US link:
https://iwae.com/resources/articles/pre-charged-line-sets.html
This Chinese link has a video showing the leak-proof connectors.:
https://www.alibaba.com/product-detail/detail_1601295542720.html?channel=minisite_a2706.wshop_pltab.119.i92&otherparams=https%3A%2F%2Fm.alibaba.com%2Fproduct%2F1601295542720%2FR410a-R134A-R32-R290-Manufactures-Customized.html&scenery_id=2&tracelog=a2706.wshop_pltab.119.i92&spm=a2706.wshop_pltab.119.i92&wx_navbar_transparent=true
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asoka1958 / December 10, 2024
Dear Old Codgar –
My whole point was to highlight the need for Abans techs to use proper refrigeration practices . Bringing a coil of exposed copper tubing from a store , cutting into size , connecting with flares is 100% wrong. There is a ton of moisture in the library that needs to be removed.
Plus must add a filter dryer too
When systems fail Abans blame the u raising but the real reason for failure could well be moisture in the small refrigeration circuit in the case of small mini splits.
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old codger / December 11, 2024
Asoka,
Yes, true in your case that they seem to have used plain copper tubing, when they should have used the pre-charged tubing that comes with the setup. Maybe they sold that to someone else.. BTW, those aren’t “Abans Techs”. They are outsourced contractors. Even SLT does it.
These companies have to take the blame for outsourcing to unqualified contractors. Singer, about 25 years ago, only wanted 1000 sq, feet and a vehicle for a service dealership. But the rates were so low that qualified people wouldn’t work for you. Cutting corners is the result.
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asoka1958 / December 11, 2024
A lot of large companies scam customers in SL and even in developed countries.
That is where consumer protection laws come into play.
GOSL can legislate by mandating all purchases about say Rs.10000.00, vendors need to produce a full disclosure in writing to be signed by customer. This includes everything that customer ought to know prior to payment.
In this case , Abans never told me that the 5 year compressor warranty was subject to customer signing a service contract after first year at Rs. 8000 py. Plus it is the responsibility of the customer to initiate such agreement.
What a scam!
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SarathP / December 11, 2024
Some years ago, I bought an A/C from an Abans branch. While negotiating the sale, I overheard a salesperson recommending an expensive 24,000BTU unit to a customer, when a lower model was quite sufficient.
My credit card was scammed during the purchase, and used to visit two casinos in Colombo, running up Rs. 600,000+ debits. Fortunately, the credit card company noticed the discrepancy (I had never visited casinos) and froze the account. I didn’t lose any money.
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SJ / December 11, 2024
Sarath
With all due respect, I am at a loss to connect between the two stories.
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asoka1958 / December 11, 2024
Actually the essence of the story was to highlight caution when buying from Abans.
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nimal fernando / December 11, 2024
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old codger / December 11, 2024
Nimal,
Et tu Nimal?
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nimal fernando / December 12, 2024
mum’s the word ….. I tried to compare AC tubes to fallopian …… tubes are tubes ……. perhaps it was a little over the top! :))
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